Natural Gas Services Group, Inc. provides gas compression equipment and services to the natural gas and oil industry in the United States. The company engages in the rental of small to medium horsepower compression equipment to non-conventional natural gas and oil production businesses. As of December 31, 2017, it had 2,546 natural gas compressors in its rental fleet totaling 369,961 horsepower. The company also assembles compressor components into compressor units for rent or sale; engineers and fabricates natural gas compressors; and designs and manufactures a line of reciprocating compressor frames, cylinders, and parts. In addition, it is involved in the design, fabrication, sale, installation, and service of flare stacks and related ignition and control devices for the onshore and offshore incineration of gas compounds, such as hydrogen sulfide, carbon dioxide, natural gas, and liquefied petroleum gases. Further, the company offers customer support services for its compressor and flare sales business; exchanges and rebuilds program for screw compressors; and maintains an inventory of new and used compressors. Natural Gas Services Group, Inc. was founded in 1998 and is headquartered in Midland, Texas.